Bringing together leading and emerging scholars on European politics, this collection explores how dilemmas associated with key democratic concepts can be understood in relation to the EU. The book renews our understanding of EU democracy in ways that are more attentive to the multiple fault lines and cleavages that structure this political order. It focuses on a set of democratic dilemmas inherent to EU democracy, including representation, deliberation, sovereignty, citizenship, democratic contestation and market, to provide discussions on the specific tensions and trade-offs associated to a particular concept. The book engages in the theoretical groundwork necessary for assessing and analysing the specific dilemmas that arise when translating democratic concepts into concrete institutional designs in the European setting.